Mixing machine



Feb. 20,. 1923.

G. H. HINCHLIFFE MIXING yMAQHINE Filed Nov.l 8, 1920 Patented Feb., 20, i923.

MIXENG haCHNCE.

Application filed November 8, Serial lio. 223430.

Bc it known that l., Gnomi: H. Hmon- Lirrn, a citizen of the `United States, and resident of Boston, county of Suffolk, State of Massachusetts., have invented an improvement in Mixingl Machines, of which the following description, in connection `with the arcompanying drawing', is a specification, likeicharacters on' the drawing, representing like parts. l

This invention relates to mixing niachines such as are used in bakeries, hotels, restaurants and similar ,glaces for mlixine dough, batter, cake. fondant, etc. @ne of the objects of theinvention is to ;})I'ovic`le an improved mixing` machine which coniprises a plurality of mixing lbowls and a beater., which is shiftable from one to anotheryof the miningr bowls andadapted to perform the mixingoperation in anyone of the bowls. Another objectof the invention is to provide a mixing machine in which the mixing` bowl is set into or is surrounded by a sink so that an;7 of the material in the bowl which spills or boils over will fall in the sink where it can easily be drained out. Other objects of the invention are to ini--` prove mixing' machines in various respects all as will be more fully hereinafter set forth.

ln order to give an understanding` of :my invent-ion I have illustrated in the drawings a selected embodiment Vthereof which will now be described after whiohthe novel features will be pointed out in the appended claims.

Fig. 1 is a front View partly in section of a mining .machine embodying my invention.

Fig. 2 is a section on the line 2 2, Fig. 1.

Fig, 3 is an enlarged view of the gearing; for shifting the position of the beater element.

As stated above one of theobiects of my invention is to providea mixing' machine having a plurality of mixing bowls and a single beater element adapted to cooperate with anyone of the bowls. The mixing bowls are indicated at 1 in Fig. 1 and any number may be used withouty departing' from the invention. These mixing bowls are supported in a suitable frame work 2 and will ineferably be arranged in a row.

I3 indicates a beater which is adapted to be introduced into any one of the bowls 1 for thc purpose of mixing the material therein. The beater 3 is shown as carried by a head `mechanism ais. desired.

fl- `by which it fis rotated and @the lhead isiirn turn ycarried by a. .carriage '.5 which Ais mounted on .the frame *for movement longitudinally thereof `so .that .the beater `can be brought into position Ato operate .in anyone .of the vbowls l. F or this purpose the frame 1s provided rwith .a track i6 extending ,longitudinally .thereof and the `carriage 5 `is iprovided with ways y7 which engage the .track (j. p This track 6 is preferably .dove-tailed in cross lsection Lso as .to .more securely hold the carriage thereon. The yframe is also provided .with a :longitudinally .extending rack 8 and 4,the carriage r5 has ya pinion 9 meshing' with the rack so that by rotatingthe pinion the carriage?) may `beiiiovedlon-` gitudinally of the frame. The .carriage 5 `supports some suitable .driving Ymechanism indicated )generally at 10 .for .rotating` .the shaft 11 by which the beater v3 is operated and this driving` mechanism .may 'bega power mechanism so that .thebeater f3 Ywill be rotated by power orit maybe .aflhandmlriven The .head 4L mounted .for vertical movement '.t'o permit the beater -to be raised `out of or Amoved down into .the .bowls 1. For thisIpur'pose vthe head iisguided vin its vertical movement on guiding heads 12 eanriedbythe earriageland is adjusted vertically by means of :a feed screw 13. y

The feed -screw is operated "from 'a lshaft 14 mounted in the carriage and which is geared to ythe 'feed screw 'through suitable bevelledgearing 1:5, 16.

I have also l provided .herein .means :whereby the carriage 5 may be shifted 'longgitudi,- nally of the track by the rotation of *the shaft 14. 4ZFor -Athis ypurpose the pinion '9 which engages the rack 8 is carried by a shaft 17 that is ljournalled in the carriage and has at-its upper end va bevelled gear 18 meshingwith abevelled gear 19 loosely niounted on the shaft let. 'The bevelled gear 16 also loosely `mounted ou the 'shaft 14 and .a sliding' clutch member 20fis provided for clutching"either gear 1G or 19 to Ithe shaft. "When thegear 16 is iclutfcl'ied to the shaft then the rotation ofthe shaft 14 will raise and lower the vhead .et and when the iqearlQ is clutched to Athe shaft thc rotation of said shaft willshiftwthe carriage 5 and the beater longitudinally of the frame.

rlhe advantage of this constructionis that the single beater can be `used for 4allofthe mixing required in au ordinary restaurant,

hotel, or bakery because the foodingredients forming the different food preparations that are to be mixed may be placed in the diierent bowls l and the carriage 5 may be shifted so as to mix the materials in any bowl. In the practical use of mixing machines it not infrequently happens that after one batch of dough or fondant has been mixed it is desirable to vmix another batch of some other material before the first batch has been used and with my machine this can be done because after having mixed a batch of dough or other material in one bowl the operator may proceed to mix a batch of a different material in another bowl without waiting for the rst named bowl to be emptied. This is a very great advantage and with this machine it would be possible for ya single operator to do all the mixingl necessary in an( ordinary hotel or restau rant. i

Another' feature of my invention relates to the placing of the bowl or bowls in a sink structure so that any material which spills out of the bowls will be caughtfinstead of dropping to the floor.

In the present embodiment'of my invention the frame 2 supports a sink structurek 2l in which each of the bowls l' are mounted. This sink structure is provided with a drain pipe 22 and has associated therewith one or' more faucets 23 by which water may be flushed into'the sink. lNith this arrangei ment any material which spills over anyone of the bowls will flow into the sink and the sink can always be kept clean by liushing it out.y My machine is therefore entirely sanitary and prevents the annoyance which comes from the material being mixed spill` ingo'nto thelloor.

The bowls l may be supported in the sink in any suitable way. I have herein shown the sink as provided with bowl-receiving apertures each surroundedbya curb er circular flange 24, said bowls being received in said apertures and supported on the curb. For this purpose the upper edge of each bowl is surrounded by a flange 25 which rests on the upper edge of the curb.

The bowls 1 may be arranged to be heated so that they act as steanicookers yor they may bearranged to be cooled so they would act as freezers, thus enabling me to material while it is cooking or while it is freezing. I vhave shown at the right in lfig. l a bowl in the nature of a double boiler it having a jacket- 26 in which steam .may be admittedthrough pipes27. 0r if desired a refrigerant may be admitted into the jacket. This feature may be applied, to anyone or more of the bowls as desired.

In the .practical use of mixers of this type it is .customary to weigh the ingredients which are put into any batch and in many instances to weigh the amounts of dough Lee-snes or other material which are taken out of the bowl toy form loaves so that all the loaves will have the same size. To facilitate this weighing I propose` to mount a pair of scales r28 on the front of the si-nk. These scales are shown as supported on a bracket 29 which may be moved longitudinally of the ksink and into position adjacent any bowl.

'I claim: y

l. In a mixing machine, the combination with a sink having bowl-receiving apertures each surrounded by a curb, of a mixing bowl removably sustained by each curb and occupying the corresponding aperture, a track situated rabove the sink, and a beater device movable on the track and adapted to operate in anyone of the mixing bowls.

2. In a mixing machine, the combination with a frame, of a plurality of mixing bowls stationarily but removably sustained thereby and arranged in a row, a track on the frame above the bowls, a carrier movable along the track, and a beater' sustained on said carrier and capable of vertical move ment relative thereto, whereby movement'of the carrier on the track brings the beater over anyone of the bowls and vertical movement of the beater on the carrier brings the beater into position to operate in said bowl.

8. kIn a mixing machine, the combination with a frame, of a plurality of mixing bowls statienarily but removably sustained. thereby, a carriage movably mounted on the frame and a beater mounted on said carriage, said carriage being movable so as to bring the/beater into position to operate in anyone of the bowls. l

4. In a mixing machine, the combination with a sink structure having a bowl-receiv ing aperture surrounded by a curb, of a miie ing bowl occupying said aperture and removably sustained by the` curb, and a beater for mixing material in said bowl.

5. In a mixingmachine, the combination with a sink structure having a plurality of bowl-receiving apertures, each surrounded by a curb, of a mixing bowl removably Sustained by each curb and occupying the corresponding aperture, and a beater movably carried by the frame and adapted to operate in anyone of the mixing bowls,

(S. `In a mixing machine, the combination with a sink having bowl-receiving apertures each surrounded by a curb, of a mixing bowl removably sustained by each curb and. occupying the corresponding` aperture. a track situated above the sink, a beater device movable on the track and adapted to bperate in anyone of the mixing bowls, and a driving mechanism on the carriage for operating the beater.

In testimony whereof.` I have signed my 

